My name is Randy.I will assist you.
You will need to know your wifi network name and the wifi network password.
If you know these please follow these steps on your iPad. If you do not know the password XXXXX can help you find it.
Tap Settings. Tap General. Scroll down to the bottom of the page and tap Reset>Tap Reset Network Settings. You will get a prompt warning you that this option will delete all network settings and return them to factory default settings. Tap Reset to continue. Wait while your iPad resets its network settings.
Once the reset process is done, your network settings will return to its factory default settings. Your iPad will also automatically restart. Try reconnecting your iPad to the network again.
I have tried your suggestion but I still cant join network
Please let me know if you need any other assistance.Thank you very much! Please take a moment to rate my service positively.